Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Transition into December in Richmond Hill, Canada, marks a drop in the average high-temperature, moving from a frosty 6.1°C (43°F) in November to a cold 0.3°C (32.5°F). The December nights show a slight decrease to a mean low-temperature of -4.3°C (24.3°F).Humidity
The average relative humidity in December is 84%.Rainfall
In Richmond Hill, in December, during 10.9 rainfall days, 48mm (1.89") of precipitation is typically accumulated. In Richmond Hill, during the entire year, the rain falls for 161.4 days and collects up to 696mm (27.4") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 13.7 days. Throughout December, 118mm (4.65") of snow is accumulated. In Richmond Hill, during the entire year, snow falls for 67.2 days and aggregates up to 637mm (25.08") of snow.Daylight
The month with the shortest days in Richmond Hill, Canada, is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:50 pm EST.
Sunshine
The average sunshine in December is 3.3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
How cold is it in Richmond Hill in December?
What is the average humidity in December in Richmond Hill?
How much does it rain in Richmond Hill in December?
How many days does it snow in December in Richmond Hill?
What is the month with the shortest days in Richmond Hill?
What is the average length of the day in December in Richmond Hill?
When are sunrise and sunset in December in Richmond Hill?
How many hours of sunshine does Richmond Hill have in December?
What is the month with the lowest UV index in Richmond Hill?
What is the UV index intensity in December in Richmond Hill?
Average temperature in December
Richmond Hill, Canada
- Average high temperature in December: 0.3°C
The warmest month (with the highest average high temperature) is July (24.9°C).
The month with the lowest average high temperature is January (-3.3°C).
- Average low temperature in December: -4.3°C
The month with the highest average low temperature is July (16.6°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in December
Richmond Hill, Canada
- Average pressure in December: 1017.3mbar
The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013.1mbar).
Average wind speed in December
Richmond Hill, Canada
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is January (17.1km/h).
The calmest month (with the lowest average wind speed) is July (10.7km/h).
Average humidity in December
Richmond Hill, Canada
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Richmond Hill, Canada
- Average rainfall in December: 48mm
The wettest month (with the highest rainfall) is October (72mm).
The driest month (with the least rainfall) is February (41mm).
Average rainfall days in December
Richmond Hill, Canada
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
Richmond Hill, Canada
- Average snowfall in December: 118mm
The month with the highest snowfall is February (163mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Richmond Hill, Canada
- Average snowfall days in December: 13.7 days
The month with the highest number of snowfall days is February (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Richmond Hill, Canada
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Richmond Hill, Canada
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in December
Richmond Hill, Canada
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Richmond Hill, Canada
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Richmond Hill, Canada
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
Richmond Hill, Canada
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